12285087557 has 16 divisors (see below), whose sum is σ = 13010664960. Its totient is φ = 11583667200.

The previous prime is 12285087511. The next prime is 12285087569. The reversal of 12285087557 is 75578058221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12285087557 - 2²² = 12280893253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12285083557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176957 + ... + 236397.

It is an arithmetic number, because the mean of its divisors is an integer number (813166560).

Almost surely, 2^12285087557 is an apocalyptic number.

It is an amenable number.

12285087557 is a deficient number, since it is larger than the sum of its proper divisors (725577403).

12285087557 is a wasteful number, since it uses less digits than its factorization.

12285087557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59644.

The product of its (nonzero) digits is 1568000, while the sum is 50.

The spelling of 12285087557 in words is "twelve billion, two hundred eighty-five million, eighty-seven thousand, five hundred fifty-seven".